我有一个使用 VS 2012 Internet 应用程序(简单会员)构建的网站 EF Code First
更新
我想知道如何扩展HttpContext.User.IsInRole(role)
自定义表的功能 -> User.IsInClient(client)
。
我有一个使用 VS 2012 Internet 应用程序(简单会员)构建的网站 EF Code First
更新
我想知道如何扩展HttpContext.User.IsInRole(role)
自定义表的功能 -> User.IsInClient(client)
。
这是我建议解决您的问题的方法:
创建您自己的实现接口System.Security.Principal
,您可以在其中放置您需要的任何方法:
public interface ICustomPrincipal : IPrincipal
{
bool IsInClient(string client);
}
实现这个接口:
public class CustomPrincipal : ICustomPrincipal
{
private readonly IPrincipal _principal;
public CustomPrincipal(IPrincipal principal) { _principal = principal; }
public IIdentity Identity { get { return _principal.Identity; } }
public bool IsInRole(string role) { return _principal.IsInRole(role); }
public bool IsInClient(string client)
{
return _principal.Identity.IsAuthenticated
&& GetClientsForUser(_principal.Identity.Name).Contains(client);
}
private IEnumerable<string> GetClientsForUser(string username)
{
using (var db = new YourContext())
{
var user = db.Users.SingleOrDefault(x => x.Name == username);
return user != null
? user.Clients.Select(x => x.Name).ToArray()
: new string[0];
}
}
}
在Global.asax.cs中,将您的自定义主体分配给请求用户上下文(如果您打算稍后使用它,可以选择分配给执行线程)。我建议Application_PostAuthenticateRequest
不要将此事件Application_AuthenticateRequest
用于此分配,否则您的主体将被覆盖(至少被 ASP.NET MVC 4 覆盖):
protected void Application_PostAuthenticateRequest(Object sender, EventArgs e)
{
Context.User = Thread.CurrentPrincipal = new CustomPrincipal(User);
/*
* BTW: Here you could deserialize information you've stored earlier in the
* cookie of authenticated user. It would be helpful if you'd like to avoid
* redundant database queries, for some user-constant information, like roles
* or (in your case) user related clients. Just sample code:
*
* var authCookie = Request.Cookies[FormsAuthentication.FormsCookieName];
* var authTicket = FormsAuthentication.Decrypt(authCookie.Value);
* var cookieData = serializer.Deserialize<CookieData>(authCookie.UserData);
*
* Next, pass some deserialized data to your principal:
*
* Context.User = new CustomPrincipal(User, cookieData.clients);
*
* Obviously such data have to be available in the cookie. It should be stored
* there after you've successfully authenticated, e.g. in your logon action:
*
* if (Membership.ValidateUser(user, password))
* {
* var cookieData = new CookieData{...};
* var userData = serializer.Serialize(cookieData);
*
* var authTicket = new FormsAuthenticationTicket(
* 1,
* email,
* DateTime.Now,
* DateTime.Now.AddMinutes(15),
* false,
* userData);
*
* var authTicket = FormsAuthentication.Encrypt(authTicket);
* var authCookie = new HttpCookie(FormsAuthentication.FormsCookieName,
authTicket);
* Response.Cookies.Add(authCookie);
* return RedirectToAction("Index", "Home");
* }
*/
}
接下来,为了能够使用控制器中的属性User
而HttpContext
无需ICustomPrincipal
每次都将其强制转换,请定义基本控制器,您可以在其中覆盖默认User
属性:
public class BaseController : Controller
{
protected virtual new ICustomPrincipal User
{
get { return (ICustomPrincipal)base.User; }
}
}
现在,让其他控制器继承它:
public class HomeController : BaseController
{
public ActionResult Index()
{
var x = User.IsInClient(name);
如果您使用Razor View Engine,并且您希望能够在视图上以非常相似的方式使用您的方法:
@User.IsInClient(name)
您需要重新定义WebViewPage
类型:
public abstract class BaseViewPage : WebViewPage
{
public virtual new ICustomPrincipal User
{
get { return (ICustomPrincipal)base.User; }
}
}
public abstract class BaseViewPage<TModel> : WebViewPage<TModel>
{
public virtual new ICustomPrincipal User
{
get { return (ICustomPrincipal)base.User; }
}
}
并告诉 Razor 通过修改Views\Web.config文件的相应部分来反映您的更改:
<system.web.webPages.razor>
...
<pages pageBaseType="YourNamespace.BaseViewPage">
使用 Linq:
var Users = Membership.GetAllUsers();
//**Kinda Like Users.InCLients(userName).
var users = from x in Users
join y in db.Clinets on x.ProviderUserKey equals y.UserID
select x
//**Kinda Like Clients.InUsers(userName)
var clients = from x in db.Clinets
join y in Users on x.UserID equals y.ProviderUserKey
select x
试试这个方法
List<Clinets> AllClinets =entityObject.Clinets .ToList();
Foreach( var check in AllClinets)
{
if(check.UserTable.RoleTable.RoleName=="Rolename1")
{
//This users are Rolename1
}
else
{
//other.
}
}
在这种情况下,存储过程会更好。